Home / 8,858.64-13,287.60-3,015.12

Finding the Fourth Proportional to 8,858.64, 13,287.60 and 3,015.12

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Solution

The fourth proportional to 8,858.64, 13,287.60 and 3,015.12 is: 4,522.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.64 : 13,287.60 = 3,015.12 : x
  2. Step 2: Convert to fraction form
    8,858.64/13,287.60 = 3,015.12/x
  3. Step 3: Cross multiply
    8,858.64x = 13,287.60 × 3,015.12
  4. Step 4: Simplify right side
    8,858.64x = 40,063,708.51
  5. Step 5: Solve for x
    x = 40,063,708.51/8,858.64
  6. Step 6: Final answer
    x = 4,522.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.